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Calcined Alumina

Nestled in Damanjodi, our refinery produces 22,75,000 tonnes of Calcined Alumina, a part of which is transported to our smelter plant at Angul for production of Aluminium metal. Further, we presently export about 10, 00,000 to 12, 00,000 tonnes of alumina per annum through our dedicated facilities in Visakhapatnam.


Physical Specifications

BET Surface Area : 60-80 M2 / GM
LOI (300-1000 deg C) : 0.5 – 1%
Bulk Density : 0.95 – 1.05 T/M 3

1 Typical Maximum
Alpha Content 10%
Grain Size
+ 125 Micron 15%
– 45 Micron 10% 12%

Chemical Specifications

1 Typical Maximum
P2O5 0.0015% 0.002 %
Na2O 0.38 % 0.50 %
Fe2O3 0.01% 0.015%
SiO2 0.012% 0.02 %
ZnO 0.0005 % 0.0008%
CaO 0.042% 0.05%
TiO2 0.0013% 0.004%
V2O5 0.0015% 0.002%
K2O 0.0015% 0.002%
Ga2O3 0.012%
Alumina Content 98.7% 98.5%(minimum)

1. Procedure – Export of Calcined Alumina

All our exports of Metallurgical Grade Calcined Alumina (sandy type) are on FOB ST (Spout Trimmed) Visakhapatnam Port ( India ) basis in bulk. The typical lot size per alumina shipment is 25-35,000mt.

All exports are based on our contracts with overseas customers directly and letters of credit opened by them in our favour. The supplies are against irrevocable letter of credit (L/C), payable at sight, in US Dollars, AT THE COUNTERS OF STATE BANK OF INDIA , COMMERCIAL BRANCH, BHUBANESWAR , INDIA . The L/C must be opened in a FIRST CLASS INTERNATIONAL BANK acceptable to us and conforming to Uniform Customs and Practice for Documentary Credits, 1993 revision, Publication no. 500 of ICC. The L/C must allow TT reimbursement within 2 working days.

Such contracts are mainly based on tenders floated by us from time to time. The tenders are issued only to the customers registered with us & are floated either for spot or long term contracts.

2. Registration – Export of Calcined Alumina

We normally float tenders on Spot or Term contract basis for export of our Calcined alumina inviting bids only from customers registered with us.

NALCO’S Alumina exports are on FOB ST (Spout Trimmed) Visakhapatnam Port (India) basis in bulk and are based on contracts with overseas buyer directly. The letter of credit should be opened by them in U.S.Dollars with NALCO as beneficiary payable at sight at the counters of State Bank of India, Bhubaneswar, India allowing TT reimbursement within two/ three working days. The letter of credit should be opened through a Ist class International bank acceptable to NALCO’s advising / negotiating bank, which presently is State Bank of India, Bhubaneswar, India.

Procedure for registration of a new customer for participation in Nalco’s tenders for export of Metallurgical Grade Calcined Alumina (Sandy type) is as below.

A. Eligibilty

Tender for Spot Contracts

  • Only overseas prospective buyers / companies having sound financial and business credentials and experience in International Trading are eligible to be registered with us.
  • Overseas offices of Central Public Sector Undertakings of Govt. of India are also eligible to apply for registration.
  • The annual turnover of the buyers should not be less than USD 15.00 million or equivalent.

Tender for Term Contracts

  • Only overseas prospective buyers / companies having sound financial and business credentials are eligible to apply for registration.
  • Overseas offices of Central Public Sector Undertakings of Govt. of India are also eligible to apply for registration.
  • The overseas buyers should have experience in international Alumina or bulk commodity business and should have purchased minimum 50,000 mt. of Alumina or bulk commodity during last 3 years including at least one bulk cargo of around 25,000 mt.
  • The annual turnover of the buyers should not be less than USD 70 mln. or equivalent. If the turnover /accounts statement of the subsidiary / division seeking registration is not available separately, the group turnover / account statement may be considered provided the group holding company gives undertaking guaranteeing performance of subsidiary / division. The group holding company should have majority stake in the subsidiary.

B. Documents Information to be furnished for Registration

  • Name , Address , Telephone , Telefax , e-Mail of the Company for correspondence along with names of contact persons and their capacities .
  • Description about the business activities of the company, address of the registered office and contact numbers .
  • In case the overseas buyer has an Indian representative, details of the representative along with due authorization. If the overseas buyers have offices in India the details about the Indian offices.
  • Published latest Annual Reports . If such annual reports are not published, the same should be declared and certified accounts statements may please be furnished.
  • Prospective buyers shall have to arrange to provide their bankers certificate in respect of their solvency/ financial capability by the bankers directly to NALCO.
  • The names of first class international banks through whom the buyer intends to open letter of credit.
  • Details of Alumina cargos/ bulk commodities purchased during last 3 years with supporting documents (For registration in Tenders for Term Contracts).
  • Any other information which the buyer feels relevant for registration.

You may courier the above details to

Executive Director (Marketing)
National Aluminium Company Limited
NALCO BHAWAN’, P/1, Nayapalli,
Bhubaneswar 751 013, Orissa, India.
Fax: +91 674 2300 521